The appearance of the 12V2A power adapter is relatively small and easy to carry. It is a portable electronic device. We often see the 12V2A power adapter in our lives. It is also widely used. Is the 12V2A power adapter universal? Is it the same as a normal power adapter? Let’s take a look at what a 12V2A power adapter is, and hope to help you.

The so-called 12V2A power adapter refers to its standard voltage of 12V and standard current of 2A, which means that its large output voltage is stable at around 12V, and its large output current is stable at around 2A, but the actual voltage and current tend to be higher. However, this does not affect its normal operation. 12V2A power adapter, as a small power supply conversion device, is mainly composed of three parts: plastic shell, power transformer and rectifier circuit. Because of its ability to convert higher voltage and current into lower Voltage and current are the characteristics of electrical power supply, so it is widely used in game consoles, language repeaters, walkmans, notebook computers and other equipment. In daily life, the 12V2A power adapter is more and more popular with consumers because of its small size, light weight, convenient carrying, and short circuit protection.
12V2A power adapter is a kind of power switching equipment, we should also pay attention to its precautions when using it, for example, what is its nominal voltage, that is, what is the upper limit of the output voltage of the power supply? There is also a power supply with the same nominal voltage. Adapters with different output currents can be used on the same electrical equipment? These are all things we should pay attention to when using 12V2A power adapter. In fact, the 12V2A power adapter uses active voltage regulator components inside, so even if the circuit voltage fluctuates, its output value is constant. Secondly, the power adapter voltage is the same, the output current is different, whether it can be used on the same device. Because the basic principle is that a large nominal current can replace a small nominal current. That is to say, a power adapter with a large output current can be used on the same electrical equipment instead of a power adapter with a small output current. This is not in contradiction with our electric power principle.